Timer



June 28, 1960 T. P. MISENKO 2,942,435

TIMER Filed Oct, 29, 1956 2 Sheets-Sheet 1 INVENTOR. Q Wig/5M5 F fl/aA-w/w I K x M MMMv/Z June 28, 1960 P, MISENKO 2,942,485

TIMER Filed Oct. 29, 1956 2 Sheets-Sheet 2 IN V EN T OR.

. Thomas Paul Misenko, St. Cloud, Minn., asslgnor of forty-eight percent to Samuel S. Misenko, Black River Falls, Wis.

Filed Oct. 29, 1956, Ser. No. 619,045

18 Claims. (Cl. 74-55) This invention relates to timing mechanisms and more particularly relates to a mechanism for periodically operating different devices at predetermined times.

An object of my invention is to provide a new and improved timing apparatus of relatively simple and inexpensive constructionand operation.

Another object of my invention is the provision of a novel timing mechanism which may be readily and easily set to operate a device at a predetermined time in relation to the time of day.

Still another object of my invention is to provide an improved timing mechanism for actuating devices and causing the same to operatefor one or more predetermined periods and then causing the devices to be deenergized.

A further object of my invention is the provision in a timing mechanism of new and novel cam operated driving connection for periodically moving a settable control for operating the device to be timed.

These and other objects and advantages of my invention will more fully appear from the following description, made in connection with the accompanying drawings, wherein like reference characters refer to the same or similar parts throughout the several views, and in which:

Fig. 1 is an elevation view of the invention with portions of the invention being shown in substantially vertical section;

Fig. 2 is a transverse vertical section of the invention taken substantially at 22 as indicated in Fig. 1;

Fig. 3 is a detail vertical section view of a portion of the invention and taken substantially at 3--3 as indicated in Fig. 1;

Fig. 4 is a detail elevation view of a portion of the invention and taken on a vertical plane as indicated sub-v stantially at 4-4 in Fig. 1, and a portion of the invention is broken away to show details; and

Fig. 5 is a detail section view with portions being broken away and taken substantially as indicated at 5-5 in Fig. 1.

One form of the invention is shown in the drawings and is described herein: 1 a

The invention includes a supporting structure indicated in general by numeral 10. The supporting structure includes a base plate 11 having a pair of spaced and upright frame plates 12 and 13 secured to the base 11 as by bolts 14. v

Means are provided for supplying rotary power to the timing apparatus. In the form shown, the source of rotary power is indicated in general by numeral 15 and is, in the form shown, enclosed within a movable framework 16 which is slidably mounted on suitable bearings 17 and 18 which are supported on-the frame 10. The framework 16 is movable from the full line position shown through the dotted line position B to facilitate disconnecting of thesource of rotary power from the timing apparatus. The source of rotary power has a step-down gear train to supply power at a slow speed to output gear 19 which is journalled in the framework 16 and is movable therewith to dotted position B.

The apparatus includes a plurality of control. devices United States Patent 0.

Power Source.

2,942,485 Patented June 28, 1960 i 20, 21, 22 and 23 which, in the form shown, comprise electric switches. Means are provided for selectively and periodically operating these control devices 20-23. In the form shown, such means includes a pair of rotary members indicated in general by numerals 24 and 25, member 24 constituting a driving member or carrier and member 25 constituting a driven operating member.

The rotary driving member 24 is mounted upon a cylindrical bearing 26 which is affixed to the upright frame plate 13 as by bolts 27. The rotary driving member 24 has an annular internal bearing surface 28 which is movable on the corresponding external cylindrical surface of the bearing 26. The outer surface 29 of driving member 24 is substantially cylindrical in shape and has a scale indicated in general by numeral 30 around the periphery thereof. An indicator or pointer 31 is aflixed to the upright frame plate 16 by the bolt 27 andthe indicator 31 overlies the scale 30 for use therewith. In the form shown, the scale 30 is divided into fifteen units around the periphery thereof to correspond to time units.

Means are provided for connecting the source of rotary power 15 to the rotary drive member 29 and in the form shown, such means include an annular internal gear 32 which is formed integrally of the rotary member 29. A pinion gear 33 is meshed with the internal gear 32 and is affixed to a shaft 34. Shaft 34 is journalled in a bearing 35 which is affixed as by screws 36 to the internal peripheral surface 37 of the cylindrical bearing 26. Another pinion gear 38 is affixed to the outer end of shaft 34 and is meshed with the output gear 19"of the rotary When the gears 19 and 38' are meshed, the carrier or driving member 29 is revolved at a slow rate of speed, and in the form shown, is revolved at a speed of one revolution every fifteen minutes or four revolutions per hour.

A control lever or handle 39 is associated with the source of rotary power 15 and has camming connection with the frame structure 16 for moving the same, when the handle isswung to dotted position C, into the dotted position B thereof for facilitating retracting the gear 19 out of driving relation with gear 38.

A stationary supporting member 40 is afiixed to the stationary bearing 26 and has an annular sleeve portion 41 extending inwardly of the mechanism. A clamping and 46 in the upright frame plate 12 and the stationary I mounting 40. The ends 47 of shaft 44 are threaded and are retained in position on the frame structure by nuts- 48 and 49. The shaft 44 has an opening 50 extending inwardly from the outer end thereof to receive and carry the conductors 51 from the cont-r01 switches 2043, and the shaft 44 also has an opening 52 through the side wall thereof to facilitate entrance of the conductors 51 into the opening 50.

A collar 53 is affixed on shaft 44 and bears against the mounting member 40 to cooperate with the nut 48 in affixedly clamping the shaft in a stationary position on the framestructure.

A mounting bracket 54 is adjustably secured on the shaft by means of set screws 55 and the bracket 54 has in a desired position. Control elements 56, 57, 58 and 59 are provided for operating the switches 26-23 respectively. The actuating or control elements 56-59 are mounted for substantially radial movement and are provided with rounded camming upper end surfaces to fa cilitate ready and easy movement thereof. It will be seen that each of the control elements 56-59 is mounted in a sleeve 60 which is afiixed'to a bracket mounting 61 on the bracket 54 and each of the control elements has a depending: projection 62 operatively associated with the corresponding switch 20-23' for operating the same. A compression spring 63 within the sleeve 66 bears against the mounting 6:1 and the movable control element for normally maintaining the latter in radially outwardly projected position. By loosening set screws 55, the bracket 54 and switches thereon may be adjusted so as to operate the switches at the proper moment in relation to the periodic movement of the operating member'25;

A pair of bearings 64 are mounted upon the shaft. 44 and rotatably carry thereon the transverse end elements 65 and 66 of the rotary operating member 25. The operating member 25 has a cylindrical outer wall 67 encompassing the end members 65 and 66 and the control devices 20-23- and their corresponding actuating or control elements 56-59. The outer cylindrical surface of wall 67 is disposed in edge-to-edge relation with the corresponding outer cylindrical surface 29 of the driving member 24.

Means are provided on the operating member 25 for selectively and periodicallyroperating the control devices 20-23, and in the form shown, the outer wall 67 is provided with a plurality of elongated slots 68 which extend substantially parallel to the rotation axis and which extend at least to the outer control elements 56- 59. A plurality of slides, indicated in general by numeral 69 are mounted on the wall 67 and in the slots 68. Each of the slides 69 has an engaging portion 78 spaced radially inwardly from the inner periphery of wall 67 in engaging and operating relation with respect to the control elements 5659. The slide frame 71 is movable radially through the slot 68 and is provided with a shorter surface adjacent the inner side of wall 67 for holding the engaging portion in operating position. An enlarged clamping block 72 is disposed within the slide frame 71 and bears against the outer surface of the wall 67 adjacent the slot. A compression spring 73 bears against the block 72 and against the outer end of the slide frame for continuously urging the block 72 into engagement with the wall 67 whereby to cause a continuous clamping relation of the slide on the walls 67. The slides 69 are radially movable in the slots into registration with the various control elements 56-59 for selectively operating the desired electrical switch 20-23 as the operating member 25 is revolved. It is to be noted that in the form shown, the wall 67 has ninety six slots arcuately spaced from. each other aroundthe wall periphery.

As best seen in Fig. 1, the outer surface of wall 67 has a-scale 74' thereon which is divided into equally spaced time: units; each of which corresponds to one hour. The spacing of the time units on the scale 74 equals the accumulative spacing between four slots 68. The spacing between adjacent slots is proportional to a time unit of fifteen minutes.

An indicator or pointer 75 is affixed to the frame plate 12 as by screw 75a to facilitate ready and easy setting of the operating member 25.

Means are, provided for periodically connecting the driving member24 with the operating member 25 in driving relation so as to produce incremental and periodic rotation of the driving member. In the form shown, an annular plate 76 is affixed to the'end member 65 of operating, member 25. The plate 76 has a'plurality of apertures 77 therein arranged concentrically of the rotation axis to provide a plurality of abutments on the operating member 25. The apertures are in predetermined relation to the slots 68 in the peripheral wall 67 and there is an identical number of apertures to the number of slots, that is, there are ninety-sis apertures in the form shown.

Means are provided on the rotary driving member 29 to facilitate releasable driving connection with the operating member 25. Inthe'form shown, such means include a projectable and retractable driving pin 78- disposed in opposed relation with the apertures 77 in the plate 76 for insertion thereinto. Pin 78 has a transverse guiding flange or cam follower 79- affixed thereto for controlling the movement of the pin. A mounting sleeve 80 having an aperture 81 in the end thereof carries the pin 78 for reciprocating movement in a direction parallel to the rotation axis. The sleeve 80 is threadably secured in the driving member 29 and has a compression spring 82 therein bearing against the inner end of. pin 78' and against the driving member 24 to normallyurge the pin 78 outwardly and toward the apertured plate 76.

Means are provided for retaining and periodically permitting projection of pin 78- into an aperture of plate 76. In the form shown, such means include an adjustable annular retaining element or plate 83 which is secured on the supporting structure and is clamped to the annular ring shaped member 41 by an annular clamp- 88 at opposite sides of the opening 86 for engaging the flange 79 of pin 78' and controlling projection and retraction of the pin. As best seen in Fig. 5, the camming surfaces 88 convergefrom the bearing surface 87 inwardly of the opening 86 and toward the apertured plate 76. The outer surface of flange 79 may be similarly beveled for engagement with the camming surfaces 88 to thereby facilitate ready and easy retraction of the pin '78 from the aperture. It will be noted that retaining plate 83 may be adjusted to cause projection of pin 78 at precisely the proper time relative to the rotation of driving member 24. Such adjustment is accomplished by loosening screws and clamping ring 84 and then rotating plate 83 so as to properly position opening 86.

Means are provided 'for restricting rotation of the rotary operating member 25. In the form shown, such means include an annular member 89' afiixed to the outer end member 66 of the operating member 25 as by screws 90. The annular member 89 has, a plurality of teeth 91 and notches 92 formed in the outer periphery thereof. It will be noted that in the form shown, the teeth have blunt ends and may have rounded ends. A brake arm 93 is swin'gably mounted on a stud 94 which is affixed to the upright frame plate 12 as by screw 95. The brake arm 93 has a roller 95 journalled thereon and engaging the outer periphery of the tooth annular rnenn ber 89 to ride over the teeth as the operating member 25 is revolved. Another arm 96 is swingably mounted on the stud 94 and has the outer end thereof adjustably secured tothe frame plate 12 by means of set screw 97 which extends through an elongated slot 98 in the plate 12 and arcuately formed about the center of stud 94. A tension spring 99 is secured between the arm'96'and the brake arm 93' and is arranged-to urge the brake arm 93' and roller 95' downwardly tothereby draw the roller '95 into secure engagement with the toothed periphery of member 89. The tension: on spring 99 may be adjusted by adjusting the positionof arm 96. It shouldbe' noted thatthe r0113 '95 is urged byispring 99' obliqueliy in relation to the length of the periphery of member 89 at the point of engagement thereof by roller 95. As a result, the roller 95 places a greater restriction to rotation of the operating member 25 in one direction than in the other direction.

Operation In operation, the electric switches 20-23 will of course be connected to the devices which they are to control in timing relation. The slides 69 are moved in the slots 68 into registration with the control element 56-59 that is to be operated. There are twenty-four time units on the scale 74 and because there are four slots for each time unit, each slot is representative of fifteen minutes. The control element 56-59 may be operated for any of a succession of individual fifteen minute periods during the day. For instance, if it is desired to close switch 20 from 10:00 until 10:30, the first two slides in the slots at the 10 on scale 74 will be moved into registration with the control element 56. The scale 74 includes two series of indications numbered 1 to 12, one series being colored white and the other being colored black to respectively represent morning and afternoon hours. The other slide 69 may be similarly shifted into registration with the proper control element and at the proper times of operation thereof as'indicated by scale 74.

When the slides 69 have been properly conditioned, the timing apparatus will be adjusted in accordance with the present time of day. If the present time of day is between 9:00 am. and 9:15 a.m., the rotary operating member will be manually revolved in the direction of arrow F until the pointer 75 is opposite the reading of 9:00. The rotary driving element 24 will be rotated,.after the handle 39 is first shifted to dotted position C thereof so as to disengage gear 19, to the exact minute between 1 and 15 corresponding to the actual time of day. If the time of day is 9:05, the driving member 24 is adjusted until the pointer 31 is opposite the number on the scale 30.

When the rotary members 24 and 25 are properly adjusted in accordance with the time of day the handle .39 is returned to the position shown in full lines so as to cause the source of power to move back to the operating position shown in full lines and to cause gear 19 to mesh with gear 38. The source of rotary power is thereby applied to the driving member 29 which will thereupon have rotated continuously and at a predetermined rate and in the form shown, driving member 24 is revolved at a speed of four revolutions per hour.

As the driving member 24 revolves, of course the pin 78 revolved therewith and the flanges 79 periodically comes into registration with the openings 86 in the retaining element 83. The flange 79 is permitted to pass through the opening 86 and the end of pin 78 is projected into one of the apertures 77 of plate 76. Pin 78 continues to move with driving member 24 and therefore the pin 78 rotates the operating member 25 in a similar direction. After pin 78 and operating member 25 have revolved through an are equal to the spacing between adjacent slots 68, flange 79 engages the camming surface 88 adjacent opening 86 and the flange is thereby moved out of opening 86 to subsequently bear against the bearing surface of retaining element 83. Pin 78 is simultaneously retracted from the opening 86 and the operating member 25 is stopped as the roller 95 of the braking mechanism rolls over a tooth and into the next adjacent notch 92.

This process of incremental rotating the operating member 25 in the direction of arrow F continues each time the driving member 24 makes a complete revolution.

As each successive slot 68 approaches the control elements 56-59, the engaging portion 70 engages. the rounded upper surface of the control element with which it is aligned and produces an inward movement of the 6 control element to operate the corresponding control devices. When the operating member 25 has been moved, it remains stationary for an interval of time, fifteen minutes in the form shown, and the control element will be held in shifted position during that interval. The control element may be held in inwardly shifted position for another interval if the next adjacent slide 69 is positioned in registration therewith.

After the timing appartus has been started, it will operate continuously on a twenty-four hour cycle, and each twenty-four hours, the control devices 20-23 will be operated at the same times and in the same sequence as originally set.

The slides 69 may be readily and easily adjusted in the slots so as to facilitate ready and easy changing of the sequence in time of operation of the control elements. It should be noted that because the operating member 25 is stationary for substantial periods of time between each movement thereof, the apparatus need not be deenergized when the slides are to be adjusted. However, it should be noted that if it is necessary to deenergize the apparatus the adjustment of the slides, the driving and operating members 24 and 25 respectively are adapted to be readily and easily set in proper relation to the time of day. It will be seen that I have provided a new and improved apparatus for operating at predetermined and selected times, a control device. I

It will also be apparent that I have provided a timing apparatus which may be easily adjusted to operate individual controls for predetermined periodic intervals at certain times in relation to the time of day.

It will, of course, be understood that various changes may be made in the form, details, arrangement and proportions of the parts without departing from the scope of my invention which consists of the matter shown and described herein and set forth in the appended claims.

What is claimed is: 1

1. A timing apparatus, comprising a support, a rotary member journalled on the support, means producing pre- 5 determined movement of said rotary member, a reaction element movably mounted on the support and having at least a segment thereof disposed adjacent the rotary member and movable in a direction similar to the direction of the rotary member, a plurality of substantially aligned abutments on the reaction element, a projectable and retractable driving pin mounted .on the rotary member in registering relation with said abutments for successively engaging the same and moving the reaction element, and operating means connected with the pin and including a cam control on the support permitting pro-, jection of the pin during movement thereof through a predetermined are for engaging an abutment and moving said reaction element.

2. A timing apparatus, comprising a support, a rotary member journalled on the support, means driving said rotary member at a predetermined rate, a reaction element movably mounted on the support and extending along a circumferential portion of the rotary member for movement therewith, said reaction element having a plurality of abutments thereon, a driving pin mounted on the rotary member adjacent the reaction element and being projectable and retractable into and out of engagement with said abutments to facilitate moving the reaction element, operating means for periodically projecting and retracting said pin and including camming means on said support and engaging the pin for controlling periodic projection and retraction thereof whereby to cause periodic movement of the'reaction element.

3. A timing apparatus, comprising a support, a rotary member journalled on the support, means driving said rotary member at a predetermined rate, a reaction ele ment movably mounted on the support and extending along a circumferential portion of the rotary member for movement therewith, said reaction element having a' plurality of abutments thereon, a driving pin mounted on the rotary member adjacent the reaction element and being projectable into and retractable out of engagement .With said 'abutments to facilitate moving the reaction element, operating. means for periodically projecting and retracting said pin and including camming means on the support and having pin-engaging. portions arcuately spaced along the are of. travel of the pin to permit projection of the pin as the same travels through a predetermined arc whereby to cause periodic movement of the reaction element.

4. A timing apparatus, comprising a support, a rotary member journalled on the support, means driving said rotary member at a predetermined rate, a reaction element movably mounted on the support and extending along at least a circumferential portion of the rotary member for movement therewith, said reaction element having a plurality of abutments thereon, a driving pin movably mounted on the rotary member and being projectable toward and retractable away from the reaction element for releasably engaging the abutments and thereby facilitating moving the reaction element, a retaining element on the support between said rotary member and the reaction element and having a bearing surface engaging and retaining the pin out of driving engagement with the abutments, said retaining element having a pinreceiving opening through the bearing surface thereof and extending along the circumferential arc of the rotary member to permit projection of the pin into driving engagement with an abutment, and said retaining element also having an oblique carnming surface at one side of the opening for retracting the pin from the abutment whereby to cause incremental periodic movement of the reaction element as the rotary member and pin are revolved.

5. A timing apparatus, comprising a support, a rotary member journalled on the support, means revolving said rotary member at a predetermined rate, a reaction element movably mounted on the support and extending along at least the circumferential portion of the rotary member for movement therewith, said reaction element having a plurality of spaced abutments facing transversely of the direction of movement thereof, a driving pin movably mounted on the rotary member and being projectable toward and away from the reaction element for engaging the abutments thereof and thereby facilitating moving the reaction element, a retaining element on the support between the rotary member and the reaction element and having a bearing surface engaging and retaining the pin out of driving engagement with the abutments, said retaining element having a pin-receiving opening through the bearing surface thereof and extending along a circumferential arc of the rotary member a distance approximating the spacing between adjacent abutments whereby to permit projection of the pin into driving engagement with an abutment, said retaining element also having oblique camming surfaces at opposite sides of the opening and converging from the bearing surface toward the reaction element for guiding the pin into and out of driving engagement with the abutments, whereby the reaction element has a predetermined periodic incremental movement as the rotary member is revolved.

6. A timing apparatus, comprising a support, a rotary member journalled on this support, means driving said rotary member at a predetermined rate, a reaction element movably mounted on the support and spaced in an axial direction from the rotary member, said reaction element extending along at least a circumferential portion of the rotary'member for movement therewith, said reaction element having a plurality of abutments thereon, a driving pin movably mounted on the rotary member and being projectable and retractable in an axial direction toward andaway from, respectively, from the reaction element for releasably engaging the abutments to thereby facilitate moving, the reaction element, a retaining plate disposed between the rotary member andv the reaction element and extending transversely of the rotation axis; said retaining plate having a bearing surface engaging and retaining the pin out of driving engagement "with the abutments, said retaining plate having a pin-receiving opening through the bearing surface thereof and extending along a circumferential arc of the rotary member to permit projection of the pin into driving engagement with an abutment, said retaining plate also having an oblique camming surface at one side of the opening for retracting the pin from the abutment, whereby to produce periodic incremental movement of the reaction element as the rotary member is revolved.

7. A timing apparatus comprising a support, a rotary member journalled on the support, means driving said rotary member at a predetermined rate, a rotary reaction element journalled on the support and adjacent the rotary member and in substantially coaxial relation therewith, said reaction element having a plurality of pinreceiving apertures arranged concentrically of the rotation axis, a driving pin mounted on said rotary member adjacent the reaction element and being projectable into and retractable out of said apertures to facilitate rotating the reaction element, spring means bearing against the pin and urging the same toward said apertures, and camming means on the support and engaging the pin for controlling projection and retraction thereof, said camnnng means being arranged to permit periodic projection of the pin during a predetermined arc of travel thereof whereby to cause periodic incremental relation of the re action element.

8. A timing apparatus comprising a support, a rotary operating member journalled on said support and having a' plurality of elongated slots spaced from each other arcuately around the rotation axis, means for revolving said operating member at a predetermined rate, a control device on said support and havinga movable con-trol element for operating the device, said control element being disposed adjacent the slots in the operating member, and a plurality of slides in the slots and being movable therein into registration With said control element, said slides having engaging portions spaced from the operating member and engaging the control element to operate the same as the rotary operating member is revolved, the slides in adjacent slots being in closely spaced relation to each other, said control element having a slideengaging surface simultaneously engageable with a pair of slides in adjacent slots to hold the control device in operated condition, said slides being movable in the slots out of registration with the control element whereby to facilitate periodic operation of the control device at selected predetermined intervals.

9. The invention as set forth in claim 8 and including a rotation-restricting mechanism on the support and associated with the operating member for periodically holding the same in a-predete'rmined relation to the control element.

10. A timing apparatus, comprising a support, a substantially cylindrical rotary member journalled on said support and having a cylindrical surface with a plurality of slots therein and extending generally longitudinally of the rotation axis, means for revolving said member at a predetermined rate, a control device on said support and having a movable control element for'operating the device, said control element being disposed adjacent the periphery of said surface, and a plurality of slides mounted in said slots and being movable therein into registration with said control element, said slides having en the control device in operated condition,- saidrslides beingmovable in: the slots and out of registration-with 9 the control element, whereby to facilitate operation of the control device at predetermined intervals.

11. A timing apparatus, comprising a support, a ro tary member journalled on said support and having a cylindrical outer wall with a plurality of elongated slots therethrough and extending generally longitudinally of the rotation axis, means for revolving said rotary member at a predetermined rate, an operable control device on the support and having a movable control element for operating the device, said control element being disposed within the rotary member and adjacent the inner periphery of the wall, and a plurality of slides mounted in said slots and being movable therein into registration with the control element, said slides having engaging portions spaced radially inwardly from the wall and adjacent the control element for engaging and operating the same as the rotary member is revolved, and said slides being movable in the slots and out of registration with the control element, whereby to facilitate operation of the control device at predetermined intervals in relation to the rotary movement of the rotary member.

12. The invention as set forth in claim 11 wherein said control element is movable substantially radially inwardly for operating the device, the engaging portion of each of said slides and said control element having camming engagement with each other to produce substantial radial movement of the control element as the slides are rotated into engagement therewith.

13. A timing control apparatus comprising a support, a rotary carrier journalled on the support, means revolving said carrier at a predetermined rate, a rotary operating member journalled on said support coaxially of the carrier and spaced axially from the carrier, said operating member having a plurality of spaced abutments concentrically of the rotation axis and adjacent the carrier, a driving pin movably mounted on the carrier and engaging one of said abutments for retaining the operating member, said pin being retractable out of engagement with the abutments, camming means on the support and engaging the pin to move the same and thereby control rotation of the operating member, said camming means being constructed and arranged to permit periodic movement of the pin into and out of engagement with an abutment to thereby cause periodic incremental movement of the opera-ting member, said operating member having a plurality of elongated slots spaced from each other arcuately around the rotation axis, each of said slots being disposed in a predetermined relation to a respective abutment, a plurality of slides each mounted in a respective slot and each having an engaging portion spaced from the operating member, and an operable control device on the support and having a movable control element disposed adjacent the operating member, said slides being individually movable in the slots into registration with the control element for engaging and moving the same, whereby to facilitate selective operation of the control device at timed intervals.

14. The structure recited in claim 13 wherein said pin is spring pressed toward the operating member, and said camming means including a retaining element on the support and bearing against the pin to retain the same out of engagement with said abutments, said retaining element having a pin-receiving opening therein extending arcuately of the carrier to permit projection of the pin into engagement with an abutment for retaining the operating member through a predetermined are, said retaining element having a camming surface at one side of the opening for engaging the pin and retracting the same from the abutment.

15. The invention recited, in claim- 13 and including a clutch mechanism between said rotary carrier and said driving means to provide for disconnecting the carrier from the driving means and facilitate ready and easy setting of the carrier and pin to a desired angular position, and rotation-restricting mechanism on the support and associated with said rotary operating member and normally restricting rotation thereof, said rotation-restricting mechanism being constructed and arranged to permit manual rotation of the operating member and thereby facilitate setting of the same in relation to the control element. I

16. The invention as set forth in claim 13 and including a plurality of operable control devices each having movable control elements for operating the devices, each of said control elements being disposed adjacent the operating member and adjacent the slots therein, said slides being adjustable in the slots for selective operation of the control devices as the operating member is rotated.

17. A timed control apparatus, comprising a support, a rotary carrier journalled on the support, means revolving said carrier at a predetermined rate, a rotary operating member journalled on said support coaxially of the carrier and spaced axially from the carrier, said operating member having a plurality of spaced abutments concentric of the rotation axis and adjacent the carrier, a driving pin movably mounted on the carrier and engaging one of said abutments for rotating the operating member, said pin being retractable out of engagement with abutments, camming means on the support and engaging the pin to move the same and thereby controlling rotation of the operating member, said camming means being constructed and arranged to permit periodic movement of the pin into engagement with an abutment to thereby cause periodic incremental movement of the operating member, said operating member having a substantially cylindrical surface with a plurality of elongated slots therein extending generally endwise of the surface, each of said slots being disposed in predetermined relation to a respective abutment, a plurality of slides each mounted in a respective slot and each having an engaging portion spaced radially from said surface, an operable control device on the support and having a movable control element disposed adjacent the cylindrical surface of said operating member, said slides being individually movable in the slots into registration with the control element for engaging and moving the same, whereby to facilitate selective operation of the control device at timed intervals.

18. A timing apparatus comprising a support, a rotary member journalled on the support, means driving said rotary member at a predetermined rate, an operating element movably mounted on the support and having at least a segment thereof disposed adjacent the rotary member and movable in a direction similar to the direction of movement of the rotary member, a plurality of substantially aligned abutments on the operating element, a projeetable and retractable driving pin mounted on the rotary member in registering relation with said abutments for successively engaging the same and moving the reaction element, operating means for periodically projecting and retracting said pin and including camming means on said support and engaging the pin for controlling periodic projection and retraction thereof, and a control device on the support and associated with said operating element to be operated thereby when the latter is moved, whereby to produce periodic operation of the control device.

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